<!DOCTYPE html>
<html lang="cn">
<head>
    <meta charset="UTF-8">
    <title>JS的使用</title>
    <script src="01.js" type="text/javascript" charset="UTF-8"></script>
</head>
<body>
    
<script type="text/javascript">
    //
    /**/
    /**
     * 
     */
    document.write("<h1 style='color: red'>这是页面的输出</h1>")
</script>
</body>
</html>